component

MMBT5551LT3G

Public Made by Adom

by adom

onsemi Bipolar (BJT), SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs mmbt5551lt3g: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 1mo ago
viewers mmbt5551lt3g: viewers · Ray 1mo ago
mmbt5551lt3g-etched.fit.json mmbt5551lt3g: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 1mo ago
mmbt5551lt3g-etched.glb mmbt5551lt3g: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 1mo ago
mmbt5551lt3g-etched.step mmbt5551lt3g: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 1mo ago
mmbt5551lt3g.glb Publish 0.1.0 · Ray 1mo ago
mmbt5551lt3g.kicad_mod Publish 0.1.0 · Ray 1mo ago
mmbt5551lt3g.kicad_sym Publish 0.1.0 · Ray 1mo ago
mmbt5551lt3g.lbr Publish 0.1.0 · Ray 1mo ago
mmbt5551lt3g.step Publish 0.1.0 · Ray 1mo ago
package.json Publish 0.1.0 · Ray 1mo ago
page.json Brief states the pinout check that actually ran (was an unconditional "Datasheet-verified pinout") · Ray 1mo ago
README.md Initial commit: component/mmbt5551lt3g · Ray 1mo ago

MMBT5551LT3G

onsemi · Bipolar (BJT) · SOT-23

MMBT5551LT3G from onsemi, in a SOT-23. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 Base input Base control input with 6.0 Vdc maximum emitter-base voltage rating.
2 Emitter output Emitter terminal with 6.0 Vdc maximum emitter-base voltage rating.
3 Collector output Collector terminal with 160 Vdc maximum collector-emitter voltage and 600 mAdc maximum continuous collector current for MMBT5551.

Key specifications

Parameter Value
Manufacturer onsemi
Package SOT-23
Category Transistors/Thyristors
Pins 3

CAD (KiCad official)

  • Symbol: MMBT5551LT3G
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: mmbt5551lt3g-etched.step / mmbt5551lt3g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mmbt5551lt3g.step / mmbt5551lt3g.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: onsemi datasheet (6 pp, sha256 9f5d518b3ce13e1f, retrieved 2026-09-23, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.2, primary claude-haiku-4-5-20251001 (text), consensus claude-sonnet-4-6 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF